Loss of pressure in a horizontal pipe of length 0.1 km and diameter 100 mm is 300 kPa. The liquid is water. What is the pipe friction slope ? $[g = 10 m / s^{2}]$

0.15

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0.3

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0.03

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Solution

The correct option is B 0.3
Since the pipe is horizontal, head loss due to friction
= Loss of pressure head

$h_{f} = \frac{Δ P}{ρ g} = \frac{300 \times 10^{3}}{1000 \times 10} = 30 m$

$F r i c t i o n s l o p e (S) = \frac{h_{f}}{L}$

$= \frac{30}{0.1 \times 1000} = 0.3$

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Loss of pressure in a horizontal pipe of length 0.1 km and diameter 100 mm is 300 kPa. The liquid is water. What is the pipe friction slope ? [ g=10 m/s2 ]

The correct option is B 0.3Since the pipe is horizontal, head loss due to friction = Loss of pressure head hf=ΔPρg=300×1031000×10=30 m Friction slope (S) =hfL =300.1×1000=0.3

Loss of pressure in a horizontal pipe of length 0.1 km and diameter 100 mm is 300 kPa. The liquid is water. What is the pipe friction slope ? $[g = 10 m / s^{2}]$

The correct option is B 0.3
Since the pipe is horizontal, head loss due to friction
= Loss of pressure head

$h_{f} = \frac{Δ P}{ρ g} = \frac{300 \times 10^{3}}{1000 \times 10} = 30 m$

$F r i c t i o n s l o p e (S) = \frac{h_{f}}{L}$

$= \frac{30}{0.1 \times 1000} = 0.3$